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Retirement Plans And Postretirement Benefits (Fair Asset Values Of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 136,874	$ 140,650
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	715	1,850
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	910	995
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,003	24,087
Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	109,246	113,718
United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	109,961	115,568	$ 107,832
United States | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	715	1,850
United States | Level 1 [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	715	1,850
United States | Level 2 [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
United States | Level 3 [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,913	25,082	$ 18,980
Foreign [Member] | Foreign Government Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	910	995
Foreign [Member] | Fixed Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,003	24,087
Foreign [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign [Member] | Level 1 [Member] | Foreign Government Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign [Member] | Level 1 [Member] | Fixed Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	910	995
Foreign [Member] | Level 2 [Member] | Foreign Government Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	910	995
Foreign [Member] | Level 2 [Member] | Fixed Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,003	24,087
Foreign [Member] | Level 3 [Member] | Foreign Government Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Foreign [Member] | Level 3 [Member] | Fixed Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,003	24,087
Foreign [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 26,913	$ 25,082

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+ References

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-Name Accounting Standards Codification
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